20020+0257
- Unique Name: 20020+0257HEI 818
- RA: 20 02 00.21
- Dec: +02 56 31.6
- Discoverer: HEI
- Discoverer Number: 818
- Components:
- First year: 1990
- Last year: 1994
- Observations: 2
- First position angle: 27
- Last position angle: 28
- First separation: 1.4
- Last separation: 1.3
- Mag first component: 10.8
- Mag second component: 11.4
- Spectral type: A3
- Primary proper motion RA: -8
- Primary proper motion DEC: -11
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes:
